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WALTER Micro Drill Bit: 0.85 mm, 118° 2-Facet Point - Cobalt Micro Drill Bits
WALTERCobalt Micro Drill Bits

WALTER Micro Drill Bit: 0.85 mm, 118° 2-Facet Point

The WALTER Micro Drill Bit (SKU 440P99, MPN A3143-0.85) is a 0.85 mm cobalt micro drill bit with a 118° 2-facet point and regular spiral flute design. This WALTER-branded tool is engineered for precision drilling in…

SKU 3G-OTH-195062

Brand
WALTER
Item
Micro Drill Bit: 0.85 mm, 118° 2-Facet Point
Category
Cobalt Micro Drill Bits
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Technical Specifications

WALTER
Manufacturer Part Number
A3143-0.85
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WALTER Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WALTER Micro Drill Bit (SKU 440P99, MPN A3143-0.85) is a 0.85 mm cobalt micro drill bit with a 118° 2-facet point and regular spiral flute design. This WALTER-branded tool is engineered for precision drilling in industrial applications.

Frequently Asked Questions

What is the WALTER Micro Drill Bit A3143-0.85 used for?

The WALTER Micro Drill Bit A3143-0.85 is used for precision drilling in industrial applications. Its 0.85 mm diameter, 118° 2-facet point, and cobalt construction make it suitable for machining hard materials like stainless steel and tool steels in toolmaking, moldmaking, and general metalworking.

What are the specifications of the WALTER Micro Drill Bit A3143-0.85?

The WALTER Micro Drill Bit A3143-0.85 has a 0.85 mm diameter, 118° 2-facet point, regular spiral flute design, and is made from cobalt. The manufacturer part number is A3143-0.85. It is designed for precision drilling in demanding industrial environments.

Where to buy WALTER Micro Drill Bit A3143-0.85 worldwide?

3G Electric supplies the WALTER Micro Drill Bit A3143-0.85 worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this precision cobalt micro drill bit.

How to select the right micro drill bit for hard materials?

For hard materials like stainless steel, select a cobalt micro drill bit with a 118° point angle and regular spiral flute, such as the WALTER A3143-0.85. Cobalt provides heat resistance and wear durability. Ensure the drill diameter matches your hole tolerance and use proper speeds and coolant for best results.

Used in

Common applications for WALTER
Automotive engine block machining — WALTER WNMG542-MM5 WSM20S turning inserts for cylinder bore finishing
Aerospace aluminum component turning — WALTER CCMT060208-FK6 WKK10S diamond inserts for high-speed finishing
General engineering cutoff operations — WALTER GX24-3E400N04-UA4 WKP33S parting inserts for steel bars
Mold and die steel grooving — WALTER GX16-2E300R6-CF5 WSM33S inserts for deep groove roughing
CNC lathe shallow hole drilling — WALTER A1148-1/16IN cobalt screw-machine drill bits for oil-hole drilling
Heavy equipment shaft turning — WALTER SCMT120408-RM4 square inserts for roughing of alloy steels

WALTER Products

3G Electric supplies WALTER cobalt micro drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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WALTER Micro Drill Bit: 0.82 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.82). Key specifications — attr1235721: WALTER; attr1235722: 0.0323; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 0.77 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.77). Key specifications — attr1235721: WALTER; attr1235722: 0.0303; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.77 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.77). Key specifications — attr1235721: WALTER; attr1235722: 0.0303; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 0.79 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.79). Key specifications — attr1235721: WALTER; attr1235722: 0.0311; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.79 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.79). Key specifications — attr1235721: WALTER; attr1235722: 0.0311; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 0.81 mm, 118° 4-Facet Point, Cobalt (MPN A3143-0.81). Key specifications — attr1235721: WALTER; attr1235722: 0.0319; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.81 mm, 118° 4-Facet Point, Cobalt (MPN A3143-0.81). Key specifications — attr1235721: WALTER; attr1235722: 0.0319; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.69 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.69). Key specifications — attr1235721: WALTER; attr1235722: 0.0272; attr1264838: Regular Spiral.

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WALTER Micro Drill Bit: 0.97 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.97). Key specifications — attr1235721: WALTER; attr1235722: 0.0382; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.62 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.62). Key specifications — attr1235721: WALTER; attr1235722: 0.0244; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.99 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.99). Key specifications — attr1235721: WALTER; attr1235722: 0.0390; attr1264838: Regular Spiral.
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